A trash can liner from Hauff's class confirmed presence of his sperm, the affidavit states.
At Hauff's urging, the teenage girls would text him photographs of themselves either partially or completely nude in exchange for a higher grade, a probable cause affidavit states. Hauff also is accused of sending nude photographs of himself to the students.
He began using a student intern's cellphone after his wife began checking his phone, the affidavit states.
Hauff told one of the victims “he had a few other girls he messed with at school,” although “he usually waited until the girls graduated, but he would make an exception for her and a few others,” the affidavit states.
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